Position space interpretation for generalized parton distributions
نویسندگان
چکیده
منابع مشابه
Position space interpretation for generalized parton distributions
Generalized parton distributions (GPDs) [1] have attracted significant interest since it has been recognized that they can not only be probed in deeply virtual Compton scattering experiments but can also be related to the orbital angular momentum carried by quarks in the nucleon [2]. However, remarkably little is still known about the physical interpretation of GPDs, and one may ask the questio...
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The Fourier transform of generalized parton distribution functions at ξ = 0 describes the distribution of partons in the transverse plane. The physical significance of these impact parameter dependent parton distribution functions is discussed. In particular, it is shown that they satisfy positivity constraints which justify their physical interpretation as a probability density. The generalize...
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■ Abstract This review explains why generalized parton distributions and the related quantum phase-space distributions are useful in exploring the quark and gluon structure of the proton and neutron. It starts with the physics of form factors and parton distributions. Then quantum phase-space distributions and their offspring are discussed. The properties of generalized parton distributions are...
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In this paper, I will explain in as simple and intuitive physical terms as possible what generalized parton distributions are, what new information about the structure of hadrons they convey and therefore what picture of the hadron will emerge. To develop this picture, I will use the example of deeply virtual Compton scattering (DVCS) and exclusive meson electroproduction processes. Based on th...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 2002
ISSN: 0375-9474
DOI: 10.1016/s0375-9474(02)01203-4